CN202231535U - Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof - Google Patents
Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof Download PDFInfo
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- CN202231535U CN202231535U CN 201120274966 CN201120274966U CN202231535U CN 202231535 U CN202231535 U CN 202231535U CN 201120274966 CN201120274966 CN 201120274966 CN 201120274966 U CN201120274966 U CN 201120274966U CN 202231535 U CN202231535 U CN 202231535U
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- 238000005452 bending Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a direct-current or alternating-current/direct-current universal micro-motor, which comprises a rotor assembly, a front bracket and an electric brush assembly installed on the front bracket; the electric brush assembly comprises an electric brush bracket, two electric brush sleeves, two electric brushes, a spring and two locating columns; the two electric brush sleeves are symmetrically fixed on the electric brush bracket; the spring comprises a cylindrical main body, a fixed arm and a movable arm; a stop block is arranged on the upper surface of the electric brush sleeve; two side surfaces of the electric brush sleeve are provided with nicks from rear to front; the two locating columns are symmetrically fixed on the electric brush bracket; the electric brushes are installed in the electric brush sleeves; the cylindrical main body of the spring is sleeved on the locating columns; the fixed arm of the spring is clamped at the bottom of the stop block of each electric brush sleeve; and the movable arm of the spring passes through the nicks of various electric brush sleeves and is respectively pressed on the tail end faces of various electric brushes. According to the micro-motor disclosed by the utility model, relatively steady pressure among the electric brushes and a reverser can be ensured; the micro-motor has the advantages of being long in service life, low in noise, convenient for installation and the like; and the assembly production efficiency is also increased.
Description
Technical field
The utility model relates to the support of motor; Particularly relate to the motor bearing of equipping mechanical commutator or the device of protecting brush or brush carrier; Relate in particular to the structure improved brush assembly of electric of the type electrical micro-machine, and relate to direct current or the general electrical micro-machine of AC/DC of equipping this structure-improved brush assembly of electric.
Background technology
The all equipment mechanical commutator of the general electrical micro-machine of prior art direct current or AC/DC; All brush assembly of electric must be arranged, this brush assembly of electric comprises brush carriage, two brush covers, two brush and springs that respectively are provided with the brush pigtail again, and brush carriage is fixed on the fore-stock of said electrical micro-machine; Two brush covers are fixed on the brush carriage symmetrically; In each brush cover spring and brush are housed respectively, spring generally withstands on the afterbody of brush, under the elastic force effect of spring; Brush is protruding, keeps in touch with the commutator of said micro-motor rotor assembly; The general electrical micro-machine brush assembly of electric of prior art direct current or AC/DC has following weak point:
One, just begin, because brush is long, the compressed amount of spring is bigger, and elastic force is also bigger, make brush and commutator face contact pressure bigger, thereby noise is bigger;
Two, after said electrical micro-machine work a period of time, because wear of brush, the compressed quantitative change of spring is little, and its pressure also diminishes, and brush is contacted with commutator become unstable, influences the normal operation of said electrical micro-machine.
The utility model content
The technical problem that the utility model will solve is to avoid the weak point of above-mentioned prior art and a kind of direct current or general electrical micro-machine of AC/DC and structure-improved brush assembly of electric thereof is provided; This structure-improved brush assembly of electric can guarantee that the pressure between brush and the commutator is relatively stable; Direct current or the general electrical micro-machine of AC/DC that is equipped with this structure-improved brush assembly of electric have the life-span long, noise is low and advantage such as easy for installation, the production efficiency when having improved simultaneously assembling again.
The technical scheme that the utility model solve the technical problem employing is:
The structure-improved brush assembly of electric of a kind of direct current or the general electrical micro-machine of AC/DC is provided, comprises brush carriage, two brush covers, two brush and springs that respectively are provided with the brush pigtail, two brush covers are fixed on the said brush carriage symmetrically; This structure-improved brush assembly of electric also comprises two reference columns; Said each spring is the torsion spring that is turned to by an elastic metallic yarn, comprises the many circles cylindrical-shaped main body that is close to winding successively, and stretches to unidirectional both ends fixed arm and lever arm, and diameter and said reference column are adaptive within this cylindrical-shaped main body; On said each brush cover the surface all directly outward pressing and bending be useful on the block of the fixed arm that blocks said spring, respectively the two sides of this brush cover all have the breach that can let the lever arm of said spring penetrate from back to front; Said two reference columns are fixed on the said brush carriage symmetrically; In said each brush cover brush is housed respectively; The cylindrical-shaped main body of said each spring is set on said two reference columns; Respectively the fixed arm of this spring is stuck in the bottom of the block of said each brush cover upper surface, and respectively the lever arm of this spring is pressed in respectively on the breech face of said each brush after the breach of said each brush cover side penetrates.
The two bottom sides of said brush cover is outward extended with dual-side, and wherein a side is provided with the through hole adaptive with said reference column; The through hole of the side of said brush cover is fixed on the said brush carriage after being passed by said reference column.
The breech face of said brush is provided with semicircle groove; The free end of the lever arm of said spring is bent into semicircular arc and is pressed in the semicircle groove on the said brush breech face.
The breach of the two sides of said brush cover is a V-notch, and its front end is semicircle.
The distance of end surface is between 3～10 millimeters before the V-notch front end semicircle of said brush cover and this brush cover.
A kind of direct current or general electrical micro-machine of AC/DC of equipping the structure-improved brush assembly of electric also is provided, comprises rotor assembly, fore-stock and be installed in the brush assembly of electric on this fore-stock; Said brush assembly of electric comprises brush carriage, two brush covers, two brush and springs that respectively are provided with the brush pigtail again, and two brush covers are fixed on the said brush carriage symmetrically; Said brush carriage is fixed on the said fore-stock; Said brush assembly of electric also comprises two reference columns; Said each spring is the torsion spring that is turned to by an elastic metallic yarn, comprises the many circles cylindrical-shaped main body that is close to winding successively, and stretches to unidirectional both ends fixed arm and lever arm, and diameter and said reference column are adaptive within this cylindrical-shaped main body; On said each brush cover the surface all directly outward pressing and bending be useful on the block of the fixed arm that blocks said spring, respectively the two sides of this brush cover all have the breach that can let the lever arm of said spring penetrate from back to front; Said two reference columns are fixed on the said brush carriage symmetrically; In said each brush cover brush is housed respectively; The cylindrical-shaped main body of said each spring is set on said two reference columns; Respectively the fixed arm of this spring is stuck in the bottom of the block of said each brush cover upper surface, and respectively the lever arm of this spring is pressed in respectively on the breech face of said each brush after the breach of said each brush cover side penetrates.
Under the elastic force effect of said spring, said each brush stretches out brush cover separately, and its head contacts with the commutator face of said rotor assembly.
Compare with prior art, the beneficial effect of general electrical micro-machine of the utility model direct current or AC/DC and structure-improved brush assembly of electric thereof is:
1, can guarantee that the pressure between brush and the commutator is relatively stable;
2, owing to equipped said structure-improved brush assembly of electric, therefore said electrical micro-machine have the life-span long, noise is low and advantage such as easy for installation, the production efficiency when having improved simultaneously assembling again.
Description of drawings
Fig. 1 is the axonometric projection sketch map of the structure-improved brush assembly of electric of the utility model direct current or the general electrical micro-machine of AC/DC;
Fig. 2 is the main sketch map of looking of the orthographic projection of said structure-improved brush assembly of electric;
The axonometric projection sketch map of the brush carriage 20 of the said structure-improved brush assembly of electric of Fig. 3;
Fig. 4 is the main sketch map of looking of orthographic projection of the brush carriage 20 of said structure-improved brush assembly of electric;
Fig. 5 is the axonometric projection sketch map of the brush cover 30 of said structure-improved brush assembly of electric;
Fig. 6 is the orthographic projection schematic rear view of the brush cover 30 of said structure-improved brush assembly of electric;
Fig. 7 is the orthographic projection schematic side view of the brush cover 30 of said structure-improved brush assembly of electric;
Fig. 8 is the axonometric projection sketch map that the brush of said structure-improved brush assembly of electric overlaps 30 other directions;
Fig. 9 is the axonometric projection sketch map of the brush 40 of said structure-improved brush assembly of electric;
Figure 10 is the main sketch map of looking of orthographic projection of the brush 40 of said structure-improved brush assembly of electric;
Figure 11 is the axonometric projection sketch map of the spring 50 of said structure-improved brush assembly of electric;
Figure 12 is the main perspective view of looking of orthographic projection of the spring 50 of said structure-improved brush assembly of electric.
Embodiment
Below in conjunction with each accompanying drawing the utility model is done further explain.
Referring to Fig. 1 to Figure 12; The structure-improved brush assembly of electric of a kind of direct current or the general electrical micro-machine of AC/DC; Comprise that brush 40 and 50, two brushes covers 30 of spring that brush carriage 20, two 30, two in brush covers respectively are provided with the brush pigtail are fixed on the said brush carriage 20 symmetrically; This structure-improved brush assembly of electric also comprises two reference columns 60; Said each spring 50 is the torsion springs that turned to by an elastic metallic yarn; Comprise the many circles cylindrical-shaped main body 51 that is close to winding successively; And stretching to unidirectional both ends fixed arm 52 and lever arm 53, diameter and said reference column 60 are adaptive within this cylindrical-shaped main body 51; On said each brush cover 30 surface all directly outward pressing and bending be useful on the block 31 of the fixed arm 52 that blocks said spring 50, respectively the two sides of this brush cover 30 all have the breach 32 that can let the lever arm 53 of said spring 50 penetrate from back to front; Said two reference columns 60 are fixed on the said brush carriage 20 symmetrically, generally can adopt the riveted joint mode to fix; In said each brush cover 30 brush 40 is housed respectively; The cylindrical-shaped main body 51 of said each spring 50 is set on said two reference columns 60; Respectively the fixed arm 52 of this spring 50 is stuck in the bottom 311 that said each brush overlaps the block 31 of 30 upper surfaces, is pressed in respectively on the breech face of said each brush 40 after respectively the lever arm 53 of this spring 50 breach 32 that overlaps 30 sides from said each brush penetrates.
Referring to Fig. 1 to Figure 12, a kind of direct current or general electrical micro-machine of AC/DC of equipping the structure-improved brush assembly of electric comprises rotor assembly (not shown), fore-stock (not shown) and is installed in the brush assembly of electric on this fore-stock; Said brush assembly of electric comprises that again brush 40 and 50, two brushes covers 30 of spring that brush carriage 20, two 30, two in brush covers respectively are provided with the brush pigtail are fixed on the said brush carriage 20 symmetrically; Said brush carriage 20 is fixed on the said fore-stock; Said brush assembly of electric also comprises two reference columns 60; Said each spring 50 is the torsion springs that turned to by an elastic metallic yarn; Comprise the many circles cylindrical-shaped main body 51 that is close to winding successively; And stretching to unidirectional both ends fixed arm 52 and lever arm 53, diameter and said reference column 60 are adaptive within this cylindrical-shaped main body 51; On said each brush cover 30 surface all directly outward pressing and bending be useful on the block 31 of the fixed arm 52 that blocks said spring 50, respectively the two sides of this brush cover 30 all have the breach 32 that can let the lever arm 53 of said spring 50 penetrate from back to front; Said two reference columns 60 are fixed on the said brush carriage 20 symmetrically, generally can adopt the riveted joint mode to fix; In said each brush cover 30 brush 40 is housed respectively; The cylindrical-shaped main body 51 of said each spring 50 is set on said two reference columns 60; Respectively the fixed arm 52 of this spring 50 is stuck in the bottom 311 that said each brush overlaps the block 31 of 30 upper surfaces, is pressed in respectively on the breech face of said each brush 40 after respectively the lever arm 53 of this spring 50 breach 32 that overlaps 30 sides from said each brush penetrates.
Under the elastic force effect of said spring 50, said each brush 40 stretches out brush cover 30 separately, and its head contacts with the commutator face of said rotor assembly.
Referring to Fig. 1, Fig. 2 and Fig. 5 to Fig. 8, the two bottom sides of said brush cover 30 is outward extended with dual- side 33,34, and wherein a side 33 is provided with the through hole 331 adaptive with said reference column 60; After being passed by said reference column 60, the through hole 331 of the side 33 of said brush cover 30 is fixed on the said brush carriage 20.
Referring to Fig. 1, Fig. 2 and Fig. 9 to Figure 12, the breech face of said brush 40 is provided with semicircle groove 41; The free end of the lever arm 53 of said spring 50 is bent into semicircular arc 531 and is pressed in the semicircle groove 41 on said brush 40 breech faces.
Referring to Fig. 1, Fig. 5, Fig. 7 and Fig. 8, the breach 32 of the two sides of said brush cover 30 is V-notchs, and its front end is semicircle 321.
Referring to Fig. 7, V-notch 32 front ends semicircle 321 of said brush cover 30 and this brush cover 30 before end surface apart from T between 3～10 millimeters.
The above embodiment has only expressed the preferred implementation of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.
Claims (10)
1. the structure-improved brush assembly of electric of direct current or the general electrical micro-machine of AC/DC; Comprise brush carriage (20), two brush covers (30), two brush (40) and springs (50) that respectively are provided with the brush pigtail, two brush covers (30) are fixed on the said brush carriage (20) symmetrically; It is characterized in that:
Also comprise two reference columns (60);
Said each spring (50) is the torsion spring that is turned to by an elastic metallic yarn; Comprise the many circles cylindrical-shaped main body (51) that is close to winding successively; And stretching to unidirectional both ends fixed arms (52) and lever arm (53), diameter and said reference column (60) are adaptive within this cylindrical-shaped main body (51);
On said each brush cover (30) surface all directly outward pressing and bending be useful on the block (31) of the fixed arm (52) that blocks said spring (50), respectively the two sides of this brush cover (30) all have the breach (32) that can let the lever arm (53) of said spring (50) penetrate from back to front;
Said two reference columns (60) are fixed on the said brush carriage (20) symmetrically; In said each brush cover (30) brush (40) is housed respectively; The cylindrical-shaped main body (51) of said each spring (50) is set on said two reference columns (60); Respectively the fixed arm (52) of this spring (50) is stuck in the bottom (311) of the block (31) of said each brush cover (30) upper surface, and respectively the lever arm (53) of this spring (50) is pressed in respectively on the breech face of said each brush (40) after the breach (32) of said each brush cover (30) side penetrates.
2. the structure-improved brush assembly of electric of direct current according to claim 1 or the general electrical micro-machine of AC/DC is characterized in that:
The two bottom sides of said brush cover (30) is outward extended with dual-side (33,34), and wherein a side (33) is provided with the through hole (331) adaptive with said reference column (60); The through hole (331) of the side (33) of said brush cover (30) is fixed on the said brush carriage (20) after being passed by said reference column (60).
3. the structure-improved brush assembly of electric of direct current according to claim 1 or the general electrical micro-machine of AC/DC is characterized in that:
The breech face of said brush (40) is provided with semicircle groove (41); The free end of the lever arm (53) of said spring (50) is bent into semicircular arc (531) and is pressed in the semicircle groove (41) on said brush (40) breech face.
4. according to each the described direct current of claim 1 to 3 or the structure-improved brush assembly of electric of the general electrical micro-machine of AC/DC, it is characterized in that:
The breach (32) of the two sides of said brush cover (30) is a V-notch, and its front end is semicircle (321).
5. the structure-improved brush assembly of electric of direct current according to claim 4 or the general electrical micro-machine of AC/DC is characterized in that:
V-notch (32) front end of said brush cover (30) semicircle (321) and this brush cover (30) before the distance of end surface (T) between 3～10 millimeters.
6. direct current or the general electrical micro-machine of AC/DC comprise rotor assembly, fore-stock and are installed in the brush assembly of electric on this fore-stock; Said brush assembly of electric comprises brush carriage (20), two brush covers (30), two brush (40) and springs (50) that respectively are provided with the brush pigtail again, and two brush covers (30) are fixed on the said brush carriage (20) symmetrically; Said brush carriage (20) is fixed on the said fore-stock; It is characterized in that:
Said brush assembly of electric also comprises two reference columns (60);
Said each spring (50) is the torsion spring that is turned to by an elastic metallic yarn; Comprise the many circles cylindrical-shaped main body (51) that is close to winding successively; And stretching to unidirectional both ends fixed arms (52) and lever arm (53), diameter and said reference column (60) are adaptive within this cylindrical-shaped main body (51);
On said each brush cover (30) surface all directly outward pressing and bending be useful on the block (31) of the fixed arm (52) that blocks said spring (50), respectively the two sides of this brush cover (30) all have the breach (32) that can let the lever arm (53) of said spring (50) penetrate from back to front;
Said two reference columns (60) are fixed on the said brush carriage (20) symmetrically; In said each brush cover (30) brush (40) is housed respectively; The cylindrical-shaped main body (51) of said each spring (50) is set on said two reference columns (60); Respectively the fixed arm (52) of this spring (50) is stuck in the bottom (311) of the block (31) of said each brush cover (30) upper surface, and respectively the lever arm (53) of this spring (50) is pressed in respectively on the breech face of said each brush (40) after the breach (32) of said each brush cover (30) side penetrates.
7. direct current according to claim 6 or the general electrical micro-machine of AC/DC is characterized in that:
The two bottom sides of said brush cover (30) is outward extended with dual-side (33,34), and wherein a side (33) is provided with the through hole (331) adaptive with said reference column (60); The through hole (331) of the side (33) of said brush cover (30) is fixed on the said brush carriage (20) after being passed by said reference column (60).
8. direct current according to claim 6 or the general electrical micro-machine of AC/DC is characterized in that:
The breech face of said brush (40) is provided with semicircle groove (41); The free end of the lever arm (53) of said spring (50) is bent into semicircular arc (531) and is pressed in the semicircle groove (41) on said brush (40) breech face.
9. according to each the described direct current or the general electrical micro-machine of AC/DC of claim 6 to 8, it is characterized in that:
The breach (32) of the two sides of said brush cover (30) is a V-notch, and its front end is semicircle (321).
10. direct current according to claim 9 or the general electrical micro-machine of AC/DC is characterized in that:
V-notch (32) front end of said brush cover (30) semicircle (321) and this brush cover (30) before the distance of end surface (T) between 3～10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120274966 CN202231535U (en) | 2011-07-29 | 2011-07-29 | Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120274966 CN202231535U (en) | 2011-07-29 | 2011-07-29 | Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231535U true CN202231535U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120274966 Expired - Fee Related CN202231535U (en) | 2011-07-29 | 2011-07-29 | Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof |
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| Country | Link |
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| CN (1) | CN202231535U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996951A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Direct-current motor brush |
| CN104901467A (en) * | 2015-05-14 | 2015-09-09 | 苏州永捷电机有限公司 | Carbon brush assembly and motor with carbon brush assembly |
| CN107210643A (en) * | 2014-12-12 | 2017-09-26 | 法雷奥电机设备公司 | Improvement brush holder and corresponding brush carrier, electric notor and motor vehicle starter for motor vehicle starter |
| CN109599997A (en) * | 2018-11-12 | 2019-04-09 | 大同新成新材料股份有限公司 | A kind of adjustable flexibility brush and its application method |
-
2011
- 2011-07-29 CN CN 201120274966 patent/CN202231535U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996951A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Direct-current motor brush |
| CN107210643A (en) * | 2014-12-12 | 2017-09-26 | 法雷奥电机设备公司 | Improvement brush holder and corresponding brush carrier, electric notor and motor vehicle starter for motor vehicle starter |
| CN107210643B (en) * | 2014-12-12 | 2019-11-19 | 法雷奥电机设备公司 | Improvement brush holder and corresponding brush carrier, electric notor and motor vehicle starter for motor vehicle starter |
| CN104901467A (en) * | 2015-05-14 | 2015-09-09 | 苏州永捷电机有限公司 | Carbon brush assembly and motor with carbon brush assembly |
| CN109599997A (en) * | 2018-11-12 | 2019-04-09 | 大同新成新材料股份有限公司 | A kind of adjustable flexibility brush and its application method |
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| C14 | Grant of patent or utility model | ||
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Address after: 518104 Guangdong city of Shenzhen province Baoan District manhole Street manhole West Maan Shan Industrial Park, Tai Tong Industrial Zone No. 1, No. 2, No. 3 Patentee after: Dongming Shenzhen electromechanical Limited by Share Ltd Address before: 518104 Guangdong city of Shenzhen Province in Western Baoan District manhole Maan Shan Industrial Park Ditang Industrial Zone No. 2 Patentee before: Dongming Mechanical and Electrical (Shenzhen) Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Direct-current or alternating-current/direct-current universal micro-motor and improved electric brush assembly thereof Effective date of registration: 20180612 Granted publication date: 20120523 Pledgee: Shenzhen Baode letter Internet Nationwide Financial Services Inc Pledgor: Dongming Shenzhen electromechanical Limited by Share Ltd Registration number: 2018980000072 |
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Effective date of registration: 20180613 Granted publication date: 20120523 |
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Date of cancellation: 20210613 Granted publication date: 20120523 |
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Effective date of registration: 20210613 Granted publication date: 20120523 |
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Date of cancellation: 20210729 Granted publication date: 20120523 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20120523 Termination date: 20180729 |